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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K1DDX callsign genealogy

Currently held by SEITZ, REED A

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by K1DDX's current licensee, walking backwards.

  1. KM6DJCcancelled· T
    Kidd, Christopher CCAgranted 2016-06-09cancelled 2016-11-15

Successor callsigns

Callsigns held now by people who previously held K1DDX.

  1. W1WONcancelled· T
    SEITZ, REED ACTgranted 2009-02-03cancelled 2014-12-30
  2. K1IDJcancelled· T
    SEITZ, REED ACTgranted 2001-02-09cancelled 2003-02-11

All historical holders

Every license row we've seen with the callsign K1DDX, oldest first.

  • SEITZ, REED A CT
    1999-01-07 → cancelled 2001-02-09
  • SEITZ, REED A CT
    2003-02-11 → cancelled 2009-02-03
  • KIDD 209, CHRISTOPHER C CA
    2016-11-15 active